Entry

Deltec Skimmers to Feature New Pumps and Patented Bubble Plate

Deltec skimmers were once considered the best  available. They still do perform, but with the significant changes in skimmer tech, namely enlarged volutes (voh-loots) and bubble plates, they have not been seen in the same light as they once were.

Gone are the days of multiple Eheims slapped on large “rocket skimmers”.  Deltec realized this and [...]

Deltec skimmers were once considered the best  available. They still do perform, but with the significant changes in skimmer tech, namely enlarged volutes (voh-loots) and bubble plates, they have not been seen in the same light as they once were.

deltec_action

Gone are the days of multiple Eheims slapped on large “rocket skimmers”.  Deltec realized this and has developed their very own OEM skimmer pump featuring an enlarged volute capable of drawing over 1500lph at only 25 watts [and will be even more powerful on US 60hz]. The photos shown here depict an AP1004 utilizing two of these new pumps instead of the usual 4 Eheims.

The pumps currently being used are custom prototypes. Once finalized they will be made into molds for mass production. At the moment the blurry photo looks to indicate an AquaBee 5000 motor with heavy modifications. Deltec is adamant that the final pump used will not be this and that they have moved away from their old prototype design that we showed you here

top_down_deltec

The new Deltecs will also feature a dual chamber bubble plate. This bubble plate will be recirculated to reduce back pressure on the skimmer pumps allowing higher air intake levels, while also separating clean water. This will allow higher flow through rates without increasing turbulence and ensuring untreated water is being processed by the pumps. Deltec states this will be a patented design, but at the moment there is no information regarding applications or granted patents. 

deltec_dry

When we asked about a new neck transition or potential conical design Deltec responded by saying, “As long as there is no turbulence in the body there is no real quantitative benefit.” In my experience a neck reduction of 50% taking place over just 2″ tends to create turbulence, but we will have to wait and see how this new design performs.

Initial pump molds arrive this coming week and European shelves may be stocked with the second generation skimmers in a 702 equivalent in ~4 weeks. Don’t expect to see these in the US anytime too soon. It will be at least 3-4 weeks after the European release date. 

There is also talk of this new skimmer pump in a flow application, capable of pushing 6,000lph or 1,500gph. No word on electric consumption with no air processing or any maximum head numbers.

Photos via D-D

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  • Steve
    Deltec is overpriced IMO.
  • Nick
    A friend recently replaced his 701 with an ATB 840 there is no comparison really the bubble density and smooth transition are big improvements, performance and water clarity greatly improved all at 1/2 the watts of a 1260 powered skimmer.
  • @Jeremy, a constant diameter tube may perform just as well. I have discussed this many times with various reefers. Some downdraft skimmers feature this and DDs are the best comparison I can offer when discussing the calm bubble stacking effect seen in conical skimmers.

    With downdrafts the step transitions are harsh, but often then extend to a 1-2' neck. Turbulence is reduced below in the box and transitions, but the foam head allowed to rise without obstruction or turbulence into an extended neck straight to the cup. NWs are a different animal, but some DDs such as the ETSS 1500 or the oldy-but-goody RDIII come to mind regarding the constant tube diameter.

    As Mike pointed out, a cone is not the end all be all. Air draw must still be matched to the body and neck size.

    Regarding skimmer comparisons... less air, less contact time. Observed so far: Less nutrients, less turbulence and less electric consumption. (All 3 pluses in my book ;) )

    I do believe the cone design is better than "traditional" skimmers. The real questions are how much better and does the improvement warrant the price? I am not sure these questions will ever be answered for any skimmer.

    Lastly price. With molds becoming prevalent, if the trend continues cones will slowly become comparable in cost to cylindrical skimmers. Unfortunately this hobby cannot support the volume for significant R&D; making early adoption expensive... but that's what helps keep the hobby progressing.
  • @ Jeremy - I see your point, but I do think cones are more than a fad. I am incredibly impressed with my ATB L. The thing to me that stands out about the cone is the consistency of its foam head, and I think this is its main benefit (which results from less turbulence). That said I do agree with you that there are other factors. A cylindrical body with a well-matched pump can outperform a cone with an improperly matched pump. However, all else being equal (e.g., well-matched pumps, etc.), I think cones do outperform bodies with more drastic neck transitions.

    This is one reason I went with ATB, as it seemed from the skimmer experts I spoke with that the Airstar was perfectly matched to its body size...I wonder how the Vertex cone with two RDs pulling 3600 lph will match to a smaller body than my L that pulls ~2100-2200 lph, and seems a perfect match to me.
  • Jeremy Maneyapanda
    Eric, I wouldnt disagree with that at all. I would just like to look at all things equally. Why is your current skimmer performing better? Can it be chalked up to the cone exclusively? What about pump, air mixture, water flow, bioload, etc? And dont even get me started on what it means to have a skimmer perform "better"? ;)

    Its no secret, cone are very difficult (and/or expensive) to make in a quality manner. However, to what end will this help? Would a constant diameter tube perform better?
  • @Jeremy, I think there are significant gains to be had from gentle neck reductions. This can be achieved in ways beyond full cones. The ATB I am currently using performs well beyond recirculating skimmers (bubble plate and non-bubble plate) that I have used in the past.

    It's too early to make any calls, if any can be made... but I do believe there is something to the gentle reductions---the cone being the obvious epitome of this.
  • @Chris, thanks for the link to that JNS (WM). When testing the WM RX150 for Warner I indicated to them that the bubble plate was too small for recirculation without taking in bubbles present in the chamber. This looks to solve that problem.

    That said it's a bit unfair to claim Deltec as a knock off. They are an innovator of the recirculating design and many skimmers should pay homage to the AP line.
  • I agree with Sonny that its nice to see Deltec moving forward but i hope they check their prices. All of their equipment is over priced.
  • Chris
    I excepted much more from Deltec
    as a Deltec fan I very disappointed
    this skimmer looks like knock off the following
    http://www.jnsaquaria.com/2007html/products/vie...
  • While I have no problems with the Deltec AP851 I own, it is nice to see Deltec jumping back into the game. I have been tempted by the many new cone skimmers on the market, but I honestly cant justify the purchase because my Deltec is doing so well. I look forward to seeing what Deltec has to offer in the near future.
  • Jeremy Maneyapanda
    I will be one of the people to question the "bandwagon" approach to cone skimmers and air draw. Certainly they play a role in skimming. But, unfortunately, I believe the genral mass opinion seems to be leading towards "More LPH equals better" or "Any skimmer would woirk better with a cone". Cones, while intertesting, and excellent in paper application, seem to be a trend, more than a science now. Not too long ago, there was a post about a skimmer made out of a traffic cone. Is this the way skimmer "technology" is heading. It doesnt matter anything about it, as long as its a cone? In my opinion, cones can work wonderfully, provided they can appropriately be applied with a proper pump, air mixture, and water volume. They are not a panacea. Regarding air flow, I can discuss my own personal application with this. My skimmer runs a Reeflo gold pump. In "fiddling" with it, I added an alita air pump to see how much better it would skim with the increased air flow. It was horrible. Produce about half the skimmate that it did stock. LPH isnt everything. It frustrates me to see this as a screaming spec for new skimmers, because it is just a small part of the equation.

    Bear in mind, this is all just my opinion. I am certianly not pointing any fingers at anyone. Honestly, though, I liken his "Skimmer Race" to be akin to automobile manufacturing. The salesman loves to tell you that this car has 350 horsepower. However, if it weighs 3 tons, and has terrible tires; its just a number that cant be applied.
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